-al a-a a-b a-c aaa aab aac aag aah aal aan aau ab- aba abb abc abg abh abl abn abu ac- aca acb acc acg ach acl acn acu ag- aga agb agc agg agh agl agn agu aha ahb ahc ahg ahh ahl ahn ahu al- ala alb alc alg alh all aln alu an- ana anb anc ang anh anl ann anu au- aua aub auc aug auh aul aun b-u baa bab bac bag bah bal ban bau bba bbb bbc bbg bbh bbl bbn bbu bca bcb bcc bcg bch bcl bcn bcu bga bgb bgc bgg bgh bgl bgn bgu bha bhb bhc bhg bhh bhl bhu bla blb blc blg blh bll bln blu bna bnb bnc bng bnl bnn bnu bua bub buc bug buh bul bun buu c-- caa cab cac cag cah cal can cau cba cbb cbc cbg cbh cbl cbn cbu cca ccb ccc ccg cch ccl ccn ccu cga cgb cgc cgg cgh cgl cgn cgu ch- cha chb chc chg chh chl chn chu cl- cla clb clc clg clh cll cln clu cn- cna cnb cnc cng cnh cnl cnn cnu cua cub cuc cug cuh cul cun cuu gaa gab gac gag gah gal gan gau gba gbc gbg gbh gbl gbn gbu gca gcb gcc gcg gch gcl gcn gcu gga ggb ggc ggg ggh ggn ggu gha ghb ghc ghg ghh ghl ghn gla glb glc glg glh gll gln glu gna gnb gnc gnl gnn gnu gu- gua gub guc gug gul gun guu haa hab hac hag hah hal han hau hba hbb hbc hbg hbh hbl hbn hbu hca hcb hcc hcg hch hcl hcn hga hgb hgc hgg hgh hgl hgn hgu hha hhb hhc hhg hhh hhl hhn hhu hla hlb hlc hlg hlh hll hln hlu hna hnb hnc hng hnh hnl hnn hnu hua hub huc hug huh hul hun huu la- laa lab lac lag lah lal lan lau lba lbb lbc lbg lbh lbl lbu lca lcb lcc lcg lch lcl lcn lcu lga lgb lgc lgg lgh lgl lgn lgu lha lhb lhc lhh lhu lla llb llc llg lll lln llu lna lnb lnc lng lnh lnl lnn lnu lua lub luc lug luh lul lun luu naa nab nac nag nah nal nan nau nba nbb nbc nbg nbl nbn nbu nca ncb ncc ncg nch ncl ncn ncu nga ngb ngc ngg ngh ngl ngn ngu nha nhb nhc nhg nhh nhl nhn nhu nla nlb nlc nlg nlh nll nln nlu nna nnb nnc nng nnh nnl nnn nnu nua nub nuc nug nuh nul nun nuu ua- uaa uab uac uag uah ual uan uau uba ubb ubc ubg ubh ubl ubn ubu uca ucb ucc ucg uch ucl ucn ucu uga ugb ugc ugg ugh ugl ugn ugu uha uhb uhc uhh uhl uhu ula ulb ulc ulg ull uln ulu un- una unb unc ung unh unl unn unu uua uuc uug uun uuu